SETI may have missed alien signals for 60 years because stellar plasma smears transmissions into noise, a new Astrophysical ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks posed by UFOs ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

Pandora mission is designeed to "provide in-depth study of at least 20 known planets orbiting distant stars," according to ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

From flying saucer sightings to an Air Force-funded study at CU Boulder, the city played an unexpected role in America's UFO ...

Do little green men exist? Was 'Men In Black' a documentary? Prediction markets price the odds of the U.S. confirming aliens before 2027 - here’s why traders overwhelmingly expect a government ...